1 // Copyright 2017 The Chromium Authors 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef BASE_NUMERICS_RANGES_H_ 6 #define BASE_NUMERICS_RANGES_H_ 7 8 #include <cmath> 9 #include <type_traits> 10 11 namespace base { 12 13 template <typename T> IsApproximatelyEqual(T lhs,T rhs,T tolerance)14constexpr bool IsApproximatelyEqual(T lhs, T rhs, T tolerance) { 15 static_assert(std::is_arithmetic_v<T>, "Argument must be arithmetic"); 16 return std::abs(rhs - lhs) <= tolerance; 17 } 18 19 } // namespace base 20 21 #endif // BASE_NUMERICS_RANGES_H_ 22